For the last few weeks (that I've noticed anyway), our Samsung TV in the lounge won't allow this channel only to be changed to. If you change to this channel, the screen is black and there is no sound.

Doesn't matter if you select the channel by pressing 5, or using the channel up/down buttons to get there, or selecting it thru the Freeview guide.

Anyone else had this issue?

Addendum: I've just noticed that channel 15 (Te Reo) is also exhibiting the same issue.